package com.tao.springlcoud.intercept;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @ClassName MyGlobalIntercepter
 * @Author HETAO
 * @Date 2020/5/11 19:04
 */
@Component
@Slf4j
public class MyGlobalIntercepter implements GlobalFilter,Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        String username = exchange.getRequest().getQueryParams().getFirst("username");
        if (username == null) {
            log.error("********没有用户名********o(╥﹏╥)o");
            ServerHttpResponse response = exchange.getResponse();
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        chain.filter(exchange);
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return Ordered.LOWEST_PRECEDENCE;
    }
}
